“I don’t like MRIs,” manager Mike Matheny told reporters Tuesday, via STLtoday.com. “I would rather he wasn’t getting that right now. There must be a significant reason to do it. Especially for this kid. Always think of it in terms of our club. You never want to have somebody walk in on the first day — even a guy we don’t know their name or their face — definitely don’t want this.”

Reyes, 22, is considered one of the top pitching prospects in baseball. In 46 innings last season, Reyes whiffed 52 and posted a 1.22 WHIP.